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Monolithic Power Systems MP2161
2A, 6V, 1.5MHz, 17μA IQ, COT Synchronous Step Down Switcher In 8-pin TSOT23
Overview
| Topology | Buck Converter |
| Input voltage | 2.5-6 V |
| Output 1 | 1.2 V / 2 A |
| IC revision | 1.03 |
Description
The MP2161 is a monolithic step-down switch mode converter with built-in internal power MOSFETs. It achieves 2A continuous output current from a 2.5V to 6V input voltage with excellent load and line regulation. The outputvoltage can be regulated as low as 0.6V.
The Constant-On-Time control scheme provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
The MP2161 is available in the small TSOT23-8 package and requires a minimum number of readily available standard external components.
The MP2161 is ideal for a wide range of applications including High Performance DSPs, FPGAs, PDAs, and portable instruments.
Features
- Very Low IQ: 17μA
- Default 1.5MHz Switching Frequency
- EN and Power Good for Power Sequencing
- Wide 2.5V to 6V Operating Input Range Output Adjustable from 0.6V
- Up to 2A Output Current
- 100% Duty Cycle in Dropout
- 100mΩ and 60mΩ Internal Power MOSFET Switches
- Cycle-by-Cycle Over Current Protection
- Short Circuit Protect with Hiccup Mode
- Stable with Low ESR Output Ceramic Capacitors
- Available in a TSOT23-8 Package
Typical applications
- Low Voltage I/O System Power
- Battery Powered Devices
- Networking Cards
- Wireless cards
- Portable Instruments